tightness and pelvic pressure??

Grace • Zion James 1/22/17, Kingston👼🏽 10/14/18, rainbow baby due December 19’🌈💕
I'll be 30w tomorrow and this morning I woke up with cramping across my lower abdominal area, and it made me feel really nauseous. I thought I needed to poop, but I couldn't. And it's been about 30 minutes now and my whole lower area is so extremely tight feeling and I have TONS of pelvic pressure, I can't even bend over and I can barley stand up out of a chair. I've laid back down now and propped myself up with some pillows to try to relieve the feelings. Anyone else have this? It's extremely uncomfortable and a little painful.